MODE OF FIRING OF SOLID FUEL IN A DENSE BED Russian patent published in 2006 - IPC F23B70/00 

FIELD: the invention refers to the field of firing of solid fuel in a dense bed and may be used in the fire-chambers of solid-fuel heat -generators, ovens, steam-boilers and hot-water boilers.

SUBSTANCE: the essence of the proposed mode of firing of solid fuel in a dense bed is in that that the surface of the fire-grate is cleaned from burning furnace remains before each regurgitation of fuel, the fuel is thrown over in a layer with the thickness from 0,1 to 2 m and the layer of the fuel is ignited at least in one point of its square. From the burning fuel neighboring sections are ignited and the burning spreads in the shape of a front moving in a horizontal flatness from the place of ignition like a forest fire. Burning furnace remains from preceding regurgitation of fuel which are shoved up in separate sections on the fire-grate may serve as a source of ignition. For reducing air consumption it is directed only under those sections of the fire-grate's square above which the burning front is at this moment.

EFFECT: reduces consumption of fuel and air.

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